Occult neoplasm causing syndrome of retroperitoneal fibrosis.
D000328:Adult; D005260:Female; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000150:complications*; D008228:Lymphoma, Non-Hodgkin / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012185:Retroperitoneal Fibrosis / Q000209:etiology*